三维眼前节分析系统与超声生物显微镜测量急性原发性闭角型青光眼前房深度的一致性分析

The anterior chamber depth measurement of acute primary angle-closure glaucoma with Sirius triaxial anterior system and ultrasound biomicroscopy

目的 研究Sirius三维眼前节分析系统与超声生物显微镜（UBM）测量急性原发性闭角型青光眼（APACG）中央前房深度（CACD）及周边前房深度（PACD）的一致性.方法 前瞻性对照研究.分别采用Sirius三维眼前节分析系统和UBM测量40例（40眼）APACG患者的CACD和PACD,采用配对样本f检验及Pearson直线相关进行统计学分析,并应用Bland-Altman分析评价2种仪器测量结果的一致性.结果 Sirius三维眼前节分析系统和UBM测得的CACD值分别为（1.87±0.30） mm和（1.98±0.30）mm,PACD值为（0.61±0.21）mm和（0.56±0.21）mm,2种仪器测得CACD值及PACD值差异均有统计学意义（t=-6.533、2.432,P＜0.05）.2种仪器测得到CACD、PACD值均呈正相关（r=0.944、0.796,P＜0.05）.Sirius三维眼前节分析系统和UBM测得的CACD值、PACD值差值分别为（-0.10±0.l0）mm和（0.05±0.14）mm,95％一致性界限分别为（-0.30,0.09）mm和（-0.22,0.32）mm.结论 Sirius三维眼前节分析系统和UBM在测量APACG患眼的CACD及PACD时有较好的一致性,可相互替代使用.

Objective To explore the difference and agreement in the measurement of central anterior chamber depth (CACD) and peripheral anterior chamber depth (PACD) in the acute primary angle-closure glaucoma (APACG) between Sirius triaxial anterior system and ultrasound biomicroscopy (UBM).Methods Prospective control study.Forty eyes of 40 APACG patients were selected,respectively,using Sirius triaxial anterior system and UBM measuring CACD and PACD.Paired samples t-test and Pearson linear correlation for statistical analysis,and application of Bland-Altman analysis to evaluate the two methods of measurement consistency.Results The CACD values measured by Sirius triaxial anterior system and UBM were (1.87±0.30)mm and (1.98±0.30)mm,PACD values were (0.61±0.21)mm and (0.56±0.21)mm,respectively,indicating a significant difference (t=-6.533,2.432,P＜0.05); and a significant linear correlation between them (r=0.944,0.796,P＜0.05).Sirius triaxial anterior system and UBM measurement of CACD value,and PACD value difference were-0.10±0.10 mm,0.05±0.14 mm respectively,95％ limits of agreement were (-0.30,0.09)mm 和 (-0.22,0.32)mm.Conclusion Sirius anterior system and UBM show good agreement in the measurement of ACD in patients with APACG,the two instruments can be replaced.